static void Image_unlockIfLocked(JNIEnv* env, jobject thiz) {
ALOGV("%s", __FUNCTION__);
GraphicBuffer* buffer;
Image_getNativeContext(env, thiz, &buffer, NULL);
if (buffer == NULL) {
jniThrowException(env, "java/lang/IllegalStateException",
"Image is not initialized");
return;
}
// Is locked?
bool isLocked = false;
jobject planes = NULL;
if (!isFormatOpaque(buffer->getPixelFormat())) {
planes = env->GetObjectField(thiz, gSurfaceImageClassInfo.mPlanes);
}
isLocked = (planes != NULL);
if (isLocked) {
// no need to use fence here, as we it will be consumed by either cancel or queue buffer.
status_t res = buffer->unlock();
if (res != OK) {
jniThrowRuntimeException(env, "unlock buffer failed");
}
ALOGV("Successfully unlocked the image");
}
}
static jint Image_getFormat(JNIEnv* env, jobject thiz) {
ALOGV("%s", __FUNCTION__);
GraphicBuffer* buffer;
Image_getNativeContext(env, thiz, &buffer, NULL);
if (buffer == NULL) {
jniThrowException(env, "java/lang/IllegalStateException",
"Image is not initialized");
return 0;
}
return Image_getPixelFormat(env, buffer->getPixelFormat());
}
static GraphicBuffer*
create_composible_buffer(int width, int height) {
uint32_t bufferFlags = GraphicBuffer::USAGE_SW_WRITE_RARELY | GraphicBuffer::USAGE_HW_COMPOSER;
GraphicBuffer* buffer = new GraphicBuffer(width, height, PIXEL_FORMAT_RGBA_8888, bufferFlags);
status_t err = buffer->initCheck();
if (err) {
LOGE("error creating GraphicBuffer: %s", strerror(-err));
return NULL;
}
Rect rect = buffer->getBounds();
LOGE("GraphicBuffer information");
LOGE("width : %d", buffer->getWidth());
LOGE("height: %d", buffer->getHeight());
LOGE("stride: %d", buffer->getStride());
LOGE("usage : 0x%08x", buffer->getUsage());
LOGE("format: %d", buffer->getPixelFormat());
LOGE("bounds: (%d,%d) - (%d,%d)", rect.left, rect.top, rect.right, rect.bottom);
return buffer;
}
static jint android_hardware_HardwareBuffer_getFormat(JNIEnv* env,
jobject clazz, jlong nativeObject) {
GraphicBuffer* buffer = GraphicBufferWrapper_to_GraphicBuffer(nativeObject);
return static_cast<jint>(android_hardware_HardwareBuffer_convertFromPixelFormat(
buffer->getPixelFormat()));
}